Fluid-tight cable duct

Abstract

The invention relates to a fluid-tight cable duct ( 1 ) which is used to guide a cable ( 2 ) into a chamber ( 3 ) which can be impinged upon by pressure, and which comprises a housing ( 4 ), at least one cable ( 2 ) and one first and one second seal ( 5 a , 5 b ) which can be pressure-loaded. The two pressure-loaded seals ( 5 a , 5 b ) and the housing ( 4 ) define an inner hollow chamber ( 4 d ), and the cable ( 2 ) enters into the inner hollow chamber ( 4 d ) via the first seal ( 5 a ), through which the inner hollow chamber ( 4 d ) extends, and exits the inner hollow chamber ( 4 d ) via the second seal ( 5 b ). The inner hollow chamber ( 4 d ) comprises a pressure discharge opening ( 4 c ) which leads into an outer chamber ( 6 ) which is located outside the chamber ( 3 ) which can be impinged upon by pressure.

1. A fluid tight line lead-through for the leading of a conductor into a pressurizable space, including a housing, at least one conductor and also a first and a second pressure loadable seal, with the two pressure loadable seals and the housing bounding an internal hollow space, with the conductor entering via the first seal into the internal hollow space, extending through the internal hollow space and emerging from the internal hollow space via the second seal and wherein the internal hollow space has a pressure relief opening which opens into an external space which is located outside of the pressurizable space, wherein the conductor is an electrical conductor having a rod-like design. 
   
   
     2. A linelead-through in accordance with  claim 1 , characterized in that it is designed as a plug connection, with the housing including a first and a second housing part which are releasably connectable and wherein the conductor includes a first connection part and a second connection part which are so designed and arranged that the plug connection has a conductive connection between the first and the second connecting parts in the plugged together state within the housing. 
   
   
     3. A line lead-through in accordance with  claim 2 , characterized in that it has a plurality of connectable conductors. 
   
   
     4. A line lead-through in accordance with  claim 1 , characterized in that a connection device is arranged within the housing which permits the conductor to be connected and/or to be separated. 
   
   
     5. A line lead-through in accordance with  claim 4 , characterized in that the conductor is flexibly designed within the housing. 
   
   
     6. A line lead-through in accordance with  claim 4 , characterized in that the connection apparatus is designed in such a way that a plurality of conductors are mutually connectable. 
   
   
     7. A line lead-through in accordance with  claim 1 , characterized in that the first and the second seal include an electrical insulator through which the conductor passes. 
   
   
     8. A line lead-through in accordance with  claim 1 , characterized in that the conductor consists of metal. 
   
   
     9. A line lead-through in accordance with  claim 1 , characterized in that a sensor is provided in such a way that it can at least monitor the pressure applied in the internal hollow space. 
   
   
     10. A line lead-through in accordance with  claim 1 , characterized in that the pressure relief opening is fluid conductingly connected to a valve and in that the valve is fluid conductingly connected to an outlet opening which opens into the outer space. 
   
   
     11. A line lead-through in accordance with  claim 10 , characterized in that the valve is controllable. 
   
   
     12. A line lead-through in accordance with  claim 1 , characterized in that a valve is arranged in the pressure relief opening and in that the valve is fluid conductingly connected to the outer space. 
   
   
     13. A line lead-through in accordance with  claim 1 , characterized in that the conductors consists of a light waveguide or include a light waveguide. 
   
   
     14. A line lead-through in accordance with  claim 1 , characterized in that the internal hollow space is partly filled with a liquid or solid insulator. 
   
   
     15. A line lead-through in accordance with  claim 1 , characterized in that the pressure relief opening is geometrically designed in such a way that heat is extracted from a fluid flowing through the pressure relief opening. 
   
   
     16. A pressure loadable apparatus including a line lead-through in accordance with  claim 1 .